Q133 / 180 · COMEDK 2016 · Physics

Electrons are excited from $n=1$ to $n=4$ state. During downward transitions, possible number of spectral lines observed in Balmer series is

  • A
    4
  • B
    3
  • Correct answer
    C
    2
  • D
    1

Solution

In Balmer series, the electrons moves to $n=2$ state So, possible transitions are $4 \rightarrow 2,3 \rightarrow 2$. $\therefore$ Number of spectral lines are 2 .

Hence, the correct answer is option: 'C'.

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